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Stock-Based Compensation (Tables) | 12 Months Ended
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Dec. 31, 2012
Summary of StockOption Outstanding | The following table summarizes information about stock options outstanding at December 31, 2012:
Options Outstanding |  |  | Options Exercisable |
Exercise Price |  | Number Outstanding |  |  | Weighted Average Remaining Contractual Life (years) |  |  | Weighted Average Exercise Price |  |  | Number Exercisable |  |  | Weighted Average Exercise Price |
$15.78 |  |  | 39,614 |  |  |  | 0.2 |  |  | $ | 15.78 |  |  |  | 39,614 |  |  | $ | 15.78 |
$22.06 |  |  | 12,000 |  |  |  | 2.0 |  |  | $ | 22.06 |  |  |  | — |  |  | $ | 22.06 |
$18.48 |  |  | 687,178 |  |  |  | 5.2 |  |  | $ | 18.48 |  |  |  | 123,178 |  |  | $ | 18.48 |
Totals |  |  | 738,792 |  |  |  | 4.9 |  |  | $ | 18.39 |  |  |  | 162,792 |  |  | $ | 17.82 |
Performance Stock Plan |
Summary of Stock Based Compensation Plan Activity | A summary of PSP activity for the years ended December 31, 2012, 2011 and 2010 is as follows:
|  | Weighted- Average Grant Date Fair Value |  |  | Granted Shares |  |  | Awarded Shares |  |  | Shares Not Yet Awarded |
Outstanding at January 1, 2010 |  | $ | 7.39 |  |  |  | 7,758,547 |  |  |  | 4,423,436 |  |  |  | 3,335,111 |
Granted |  | $ | 9.67 |  |  |  | 384,420 |  |  |  | — |  |  |  | 384,420 |
Awarded |  | $ | 9.49 |  |  |  | — |  |  |  | 474,113 |  |  |  | (474,113 | )
Vested |  | $ | 2.02 |  |  |  | (1,388,789 | ) |  |  | (1,388,789 | ) |  |  | — |
Forfeited |  | $ | 7.91 |  |  |  | (962,324 | ) |  |  | (117,241 | ) |  |  | (845,083 | )
Outstanding at December 31, 2010 |  | $ | 7.32 |  |  |  | 5,791,854 |  |  |  | 3,391,519 |  |  |  | 2,400,335 |
Granted |  | $ | — |  |  |  | — |  |  |  | — |  |  |  | — |
Awarded |  | $ | 9.56 |  |  |  | — |  |  |  | 447,154 |  |  |  | (447,154 | )
Vested |  | $ | 6.01 |  |  |  | (106,490 | ) |  |  | (106,490 | ) |  |  | — |
Forfeited |  | $ | 9.48 |  |  |  | (753,552 | ) |  |  | (386,914 | ) |  |  | (366,638 | )
Outstanding at December 31, 2011 |  | $ | 8.08 |  |  |  | 4,931,812 |  |  |  | 3,345,269 |  |  |  | 1,586,543 |
Granted |  | $ | — |  |  |  | — |  |  |  | — |  |  |  | — |
Awarded |  | $ | 8.09 |  |  |  | — |  |  |  | 7,743 |  |  |  | (7,743 | )
Vested |  | $ | 3.29 |  |  |  | (877,224 | ) |  |  | (877,224 | ) |  |  | — |
Forfeited |  | $ | 13.06 |  |  |  | (363,566 | ) |  |  | (81,283 | ) |  |  | (282,283 | )
Outstanding at December 31, 2012 |  | $ | 8.72 |  |  |  | 3,691,022 |  |  |  | 2,394,505 |  |  |  | 1,296,517 |
Stock Incentive Plan |
Summary of Stock Based Compensation Plan Activity | A summary of SIP activity for the years ended December 31, 2012, 2011 and 2010 is as follows:
|  | Weighted- Average Grant Date Fair Value |  |  | Granted Shares |  |  | Awarded Shares |  |  | Shares Not Yet Awarded |
Outstanding at January 1, 2010 |  | $ | — |  |  |  | — |  |  |  | — |  |  |  | — |
Granted |  | $ | 12.62 |  |  |  | 192,245 |  |  |  | — |  |  |  | 192,245 |
Awarded |  | $ | 12.62 |  |  |  | — |  |  |  | 38,449 |  |  |  | (38,449 | )
Vested |  | $ | — |  |  |  | — |  |  |  | — |  |  |  | — |
Forfeited |  | $ | — |  |  |  | — |  |  |  | — |  |  |  | — |
Outstanding at December 31, 2010 |  | $ | 12.62 |  |  |  | 192,245 |  |  |  | 38,449 |  |  |  | 153,796 |
Granted |  | $ | 23.94 |  |  |  | 2,375,892 |  |  |  | — |  |  |  | 2,375,892 |
Awarded |  | $ | 11.41 |  |  |  | — |  |  |  | (1,041 | ) |  |  | 1,041 |
Vested |  | $ | — |  |  |  | — |  |  |  | — |  |  |  | — |
Forfeited |  | $ | 23.94 |  |  |  | (90,080 | ) |  |  | — |  |  |  | (90,080 | )
Outstanding at December 31, 2011 |  | $ | 23.06 |  |  |  | 2,478,057 |  |  |  | 37,408 |  |  |  | 2,440,649 |
Granted |  | $ | 22.59 |  |  |  | 814,545 |  |  |  | — |  |  |  | 814,545 |
Awarded |  | $ | — |  |  |  | — |  |  |  | — |  |  |  | — |
Vested |  | $ | — |  |  |  | — |  |  |  | — |  |  |  | — |
Forfeited |  | $ | 23.62 |  |  |  | (135,291 | ) |  |  | — |  |  |  | (135,291 | )
Outstanding at December 31, 2012 |  | $ | 22.91 |  |  |  | 3,157,311 |  |  |  | 37,408 |  |  |  | 3,119,903 |
Stock Option |
Summary of Stock Based Compensation Plan Activity | A summary of stock option activity for the years ended December 31, 2012, 2011 and 2010 is as follows:
Stock Options |  | Shares Under Option |  |  | Weighted- Average Exercise Price |  |  | Weighted- Average Remaining Contractual Term (in years) |  |  | Aggregate Intrinsic Value (in thousands) |
Outstanding at January 1, 2010 |  |  | 2,388,684 |  |  | $ | 17.03 |  |  |  | 6.1 |  |  | $ | 21,629 |
Granted |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Exercised |  |  | (313,514 | ) |  | $ | 13.13 |  |  |  |  |  |  |  |  |
Forfeited |  |  | (200,000 | ) |  | $ | 18.48 |  |  |  |  |  |  |  |  |
Expired |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2010 |  |  | 1,875,170 |  |  | $ | 17.53 |  |  |  | 5.4 |  |  | $ | 17,147 |
Granted |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Exercised |  |  | (52,589 | ) |  | $ | 18.48 |  |  |  |  |  |  |  |  |
Forfeited |  |  | (438,044 | ) |  | $ | 17.28 |  |  |  |  |  |  |  |  |
Expired |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2011 |  |  | 1,384,537 |  |  | $ | 17.58 |  |  |  | 4.4 |  |  | $ | 14,587 |
Granted |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Exercised |  |  | (645,745 | ) |  | $ | 16.64 |  |  |  |  |  |  |  |  |
Forfeited |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Expired |  |  | — |  |  | $ | — |  |  |  |  |  |  |  |  |
Outstanding at December 31, 2012 |  |  | 738,792 |  |  | $ | 18.39 |  |  |  | 4.9 |  |  | $ | 8,891 |
Ending vested and expected to vest at December 31, 2012 |  |  | 738,792 |  |  | $ | 18.39 |  |  |  | 4.9 |  |  | $ | 8,891 |
Exercisable at December 31, 2012 |  |  | 162,792 |  |  | $ | 17.82 |  |  |  | 4.0 |  |  | $ | 1,243 |
Exercisable at December 31, 2011 |  |  | 396,985 |  |  | $ | 18.16 |  |  |  | 5.4 |  |  | $ | 1,774 |
Exercisable at December 31, 2010 |  |  | 257,040 |  |  | $ | 17.92 |  |  |  | 6.0 |  |  | $ | 1,546 |
Non Cash |
Non-Cash Stock-Based Compensation Expense | The non-cash stock-based compensation expense for the years ended December 31 is as follows:
(in thousands) |  | 2012 |  |  | 2011 |  |  | 2010 |
Stock Incentive Plan |  | $ | 9,288 |  |  | $ | 5,320 |  |  | $ | 60 |
Employee Stock Purchase Plan |  |  | 2,856 |  |  |  | 2,126 |  |  |  | 2,511 |
Performance Stock Plan |  |  | 2,612 |  |  |  | 2,661 |  |  |  | 2,836 |
Incentive Stock Option Plan |  |  | 1,109 |  |  |  | 1,087 |  |  |  | 1,438 |
Total |  | $ | 15,865 |  |  | $ | 11,194 |  |  | $ | 6,845 |

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- Definition Tabular disclosure of the following for fully vested share options (or share units) and share options expected to vest at the date of the latest statement of financial position: the number, weighted-average exercise price (or conversion ratio), aggregate intrinsic value (except for nonpublic entities), and weighted-average remaining contractual term of options (or share units) outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for share options (or share units) that were outstanding at the beginning and end of the year, vested and expected to vest, exercisable or convertible at the end of the year, and the number of share options or share units that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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